On 10 сент. 2014 г., at 22:33, Felix Chern <idry...@gmail.com> wrote:
> Use ‘tr -s’ to stripe out tabs? > > $ echo -e "a\t\t\tb" > a b > > $ echo -e "a\t\t\tb" | tr -s "\t" > a b > There can be tabs in the input, I want to keep input lines without any modification. Actually it is rather standard task: process lines one by one without inserting extra characters. There should be standard solution for it IMO.